We intend to use Twitter, Reddit, Instagram and either Itch.io or Youtube.
Procreate has a feature that allows users to create a quick time-lapse of their drawings, something that is very satisfying to watch. I am confident that this will be a good way to gather interest due to the uniqueness of our theme.
Twitter, Reddit and Instagram are great place to advertise games by using game dev hashtags, I intend to post time-lapses of the art in those three websites. The biggest one is Twitter but nothing is lost by simply posting the same content on Reddit and Instagram too, as doing so gives us a bigger reach at the cost of 2 or 3 minutes.
Another successful way of gathering interest is by creating a devlog. Traditionally this would be done on a website such as Itch.io but after some research I've found that video devlogs are quite popular on Youtube, getting thousands of views. The downside of using Youtube is that putting a video together takes much more time than merely writing a devlog post and it would take away precious time that we need to make the game.
Ideally, getting a famous youtuber to play the game would be great but I don't think its something that we can count on.